login
A172328
a(n) = floor(n*(sqrt(11)+sqrt(3))).
1
0, 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95, 100, 106, 111, 116, 121, 126, 131, 136, 141, 146, 151, 156, 161, 166, 171, 176, 181, 186, 191, 196, 201, 206, 212, 217, 222, 227, 232, 237, 242, 247, 252
OFFSET
0,2
COMMENTS
Also integer part of n*5.0486755979..., where the constant is the largest root of x^4 -28*x^2 +64.
LINKS
MATHEMATICA
With[{c = Sqrt[11] + Sqrt[3]}, Floor[c Range[0, 70]]] (* Vincenzo Librandi, Aug 01 2013 *)
PROG
(Magma) [Floor(n*(Sqrt(11)+Sqrt(3))): n in [0..60]];
KEYWORD
nonn,easy,less
AUTHOR
Vincenzo Librandi, Feb 01 2010
STATUS
approved